<template>
  <view class="cart-container" v-if="cart.length !== 0">
    <my-address></my-address>
    <view class="cart-title">
      <uni-icons type="shop" size="18"></uni-icons>
      <text class="cart-title-text">购物车</text>
    </view>
    <uni-swipe-action>
        <block v-for="(goods, i) in cart" :key="i">
          <uni-swipe-action-item :options="options" @click="swipeActionClickHandler(goods)">
            <my-goods :goods="goods" :show-radio="true" :show-num="true" @radio-change="radioChangeHandler" @num-change="numberChangeHandler"></my-goods>
            </uni-swipe-action-item>
        </block>
    </uni-swipe-action>
    <my-settle></my-settle>
  </view>
  <view class="empty-cart" v-else>
      <image src="/static/cart_empty@2x.png" class="empty-img"></image>
      <text class="tip-text">空空如也~</text>
  </view>
</template>
<script>
  import { mapGetters } from 'vuex'
  import badgeMix from '@/mixins/tabbar-badge.js'
  import { mapState, mapMutations } from 'vuex'
  export default {
    mixins: [badgeMix],
    computed: {
      ...mapState('m_cart', ['cart']),
      ...mapGetters('m_cart', ['total']),
    },
    onShow() {
       this.setBadge()
    },
    data() {
      return {
        options: [{
          text: '删除', 
          style: {
            backgroundColor: '#C00000'
          }
        }]
      };
    },
    methods: {
       setBadge() {
          uni.setTabBarBadge({
             index: 2,
             text: this.total + ''
          })
       },
       ...mapMutations('m_cart', ['updateGoodsState', 'updateGoodsCount', 'removeGoodsById']),
        radioChangeHandler(e) {
          this.updateGoodsState(e)
        },
       numberChangeHandler(e) {
          this.updateGoodsCount(e)
        },
        swipeActionClickHandler(goods) {
            this.removeGoodsById(goods.goods_id)
        }
     },
  }
</script>

<style lang="scss">
.cart-title {
  height: 40px;
  display: flex;
  align-items: center;
  font-size: 14px;
  padding-left: 5px;
  border-bottom: 1px solid #efefef;
  .cart-title-text {
    margin-left: 10px;
  }
}

.cart-container {
  padding-bottom: 50px;
}
.empty-cart {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 150px;

  .empty-img {
    width: 90px;
    height: 90px;
  }

  .tip-text {
    font-size: 12px;
    color: gray;
    margin-top: 15px;
  }
}

</style>
